1 // SPDX-License-Identifier: GPL-2.0
12 	for (i = 0; i < adapter->num_tx_queues; i++) {  in is_any_launchtime()
13 		struct igc_ring *ring = adapter->tx_ring[i];  in is_any_launchtime()
15 		if (ring->launchtime_enable)  in is_any_launchtime()
26 	for (i = 0; i < adapter->num_tx_queues; i++) {  in is_cbs_enabled()
27 		struct igc_ring *ring = adapter->tx_ring[i];  in is_cbs_enabled()
29 		if (ring->cbs_enable)  in is_cbs_enabled()
38 	unsigned int new_flags = adapter->flags & ~IGC_FLAG_TSN_ANY_ENABLED;  in igc_tsn_new_flags()
40 	if (adapter->taprio_offload_enable)  in igc_tsn_new_flags()
49 	if (adapter->strict_priority_enable)  in igc_tsn_new_flags()
57 	struct igc_hw *hw = &adapter->hw;  in igc_tsn_is_tx_mode_in_tsn()
64 	struct igc_hw *hw = &adapter->hw;  in igc_tsn_adjust_txtime_offset()
70 	switch (adapter->link_speed) {  in igc_tsn_adjust_txtime_offset()
93 	struct igc_hw *hw = &adapter->hw;  in igc_tsn_restore_retx_default()
102 	struct igc_hw *hw = &adapter->hw;  in igc_tsn_is_taprio_activated_by_user()
105 		adapter->taprio_offload_enable;  in igc_tsn_is_taprio_activated_by_user()
110 	struct igc_hw *hw = &adapter->hw;  in igc_tsn_tx_arb()
134 	struct igc_hw *hw = &adapter->hw;  in igc_tsn_disable_offload()
151 	for (i = 0; i < adapter->num_tx_queues; i++) {  in igc_tsn_disable_offload()
161 	netdev_reset_tc(adapter->netdev);  in igc_tsn_disable_offload()
163 	/* Restore the default Tx arbitration: Priority 0 has the highest  in igc_tsn_disable_offload()
168 	adapter->flags &= ~IGC_FLAG_TSN_QBV_ENABLED;  in igc_tsn_disable_offload()
169 	adapter->flags &= ~IGC_FLAG_TSN_LEGACY_ENABLED;  in igc_tsn_disable_offload()
182 	struct igc_hw *hw = &adapter->hw;  in igc_tsn_set_retx_qbvfullthreshold()
195 	struct igc_hw *hw = &adapter->hw;  in igc_tsn_enable_offload()
197 	u32 sec, nsec, cycle;  in igc_tsn_enable_offload()  local
208 	if (adapter->strict_priority_enable) {  in igc_tsn_enable_offload()
211 		err = netdev_set_num_tc(adapter->netdev, adapter->num_tc);  in igc_tsn_enable_offload()
215 		for (i = 0; i < adapter->num_tc; i++) {  in igc_tsn_enable_offload()
216 			err = netdev_set_tc_queue(adapter->netdev, i, 1,  in igc_tsn_enable_offload()
217 						  adapter->queue_per_tc[i]);  in igc_tsn_enable_offload()
224 			adapter->queue_per_tc[i] = i;  in igc_tsn_enable_offload()
229 		igc_tsn_tx_arb(adapter, adapter->queue_per_tc);  in igc_tsn_enable_offload()
242 	for (i = 0; i < adapter->num_tx_queues; i++) {  in igc_tsn_enable_offload()
243 		struct igc_ring *ring = adapter->tx_ring[i];  in igc_tsn_enable_offload()
248 		wr32(IGC_STQT(i), ring->start_time);  in igc_tsn_enable_offload()
249 		wr32(IGC_ENDQT(i), ring->end_time);  in igc_tsn_enable_offload()
251 		if (adapter->taprio_offload_enable) {  in igc_tsn_enable_offload()
274 		if (ring->launchtime_enable)  in igc_tsn_enable_offload()
281 		if (ring->cbs_enable) {  in igc_tsn_enable_offload()
291 			 * value = link-speed   0x7736 * BW * 0.2  in igc_tsn_enable_offload()
292 			 *         ---------- *  -----------------         (E1)  in igc_tsn_enable_offload()
295 			 * Note that 'link-speed' is in Mbps.  in igc_tsn_enable_offload()
304 			 *          -----------------                      (E2)  in igc_tsn_enable_offload()
305 			 *          link-speed * 1000  in igc_tsn_enable_offload()
312 			 * value = link-speed * 0x7736 * idleSlope * 0.2  in igc_tsn_enable_offload()
313 			 *         -------------------------------------   (E3)  in igc_tsn_enable_offload()
314 			 *             100 * 2.5 * link-speed * 1000  in igc_tsn_enable_offload()
316 			 * 'link-speed' is present in both sides of the  in igc_tsn_enable_offload()
321 			 *             -----------------                   (E4)  in igc_tsn_enable_offload()
337 			cbs_value = DIV_ROUND_UP_ULL(ring->idleslope  in igc_tsn_enable_offload()
346 			     0x80000000 + ring->hicredit * 0x7736);  in igc_tsn_enable_offload()
368 	adapter->qbv_count++;  in igc_tsn_enable_offload()
370 	cycle = adapter->cycle_time;  in igc_tsn_enable_offload()
371 	base_time = adapter->base_time;  in igc_tsn_enable_offload()
374 	sec = rd32(IGC_SYSTIMH);  in igc_tsn_enable_offload()
376 	systim = ktime_set(sec, nsec);  in igc_tsn_enable_offload()
387 			* Tx won't hang if a GCL is already running,  in igc_tsn_enable_offload()
394 			sec = rd32(IGC_SYSTIMH);  in igc_tsn_enable_offload()
395 			systim = ktime_set(sec, nsec);  in igc_tsn_enable_offload()
397 			adjust_time = adapter->base_time;  in igc_tsn_enable_offload()
399 			hrtimer_start(&adapter->hrtimer, expires_time, HRTIMER_MODE_REL);  in igc_tsn_enable_offload()
412 	 * is enabled and only active for re-configuration.  in igc_tsn_enable_offload()
414 	 * "re-configuration" scenario then only set the desired base time.  in igc_tsn_enable_offload()
437 	adapter->flags = new_flags;  in igc_tsn_reset()
453 	/* Per I225/6 HW Design Section 7.5.2.1 guideline, if tx mode change  in igc_tsn_offload_apply()
454 	 * from legacy->tsn or tsn->legacy, then reset adapter is needed.  in igc_tsn_offload_apply()
456 	if (netif_running(adapter->netdev) &&  in igc_tsn_offload_apply()
458 		schedule_work(&adapter->reset_task);  in igc_tsn_offload_apply()